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Core-Drill.

Description: Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date: August 3, 1909
Creator: McLoughlin, Malacha J. & Wynn, John S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Sizing Ores or for Other Uses

Description: Patent for an apparatus for sizing ores. This invention is to "accomplish and accurate or approximately accurate sizing or classification of ores or granular materials in a rapid and thorough manner and with as large a capacity as possible" (line 15-19) illustrations included.
Date: June 23, 1903
Creator: Swain, Seth Russell
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Map of the Copper Range of Northern Michigan [Map Case Cover].

Description: Map case cover. Map in separate image shows township grid, towns, town and county boundaries, landowners, railroads, canals, Michigan coastline along Lakes Michigan and Superior, mining activity, and the limits of the Copper Range; mine shafts in cross section; location of Kearsarge Lode in longitudinal section. Includes color key to major commercial holdings and cover. Insets: Geological section of Copper Range at Calumet; Longitudinal section of mines on Kearsarge Lode. Scale not given.
Date: 1905
Creator: Edwards, R. M.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Map of the Copper Range of Northern Michigan.

Description: Map shows township grid, towns, town and county boundaries, landowners, railroads, canals, Michigan coastline along Lakes Michigan and Superior, mining activity, and the limits of the Copper Range; mine shafts in cross section; location of Kearsarge Lode in longitudinal section. Includes color key to major commercial holdings and cover. Insets: Geological section of Copper Range at Calumet; Longitudinal section of mines on Kearsarge Lode. Scale not given.
Date: 1905
Creator: Edwards, R. M.
Item Type: Refine your search to only Map
Location: 47.406482 -87.945557
Partner: University of Texas at Arlington Library

Post route map of the territory of New Mexico : showing post offices with the intermediate distances and mail routes in operation on the 1st of June 1901 ; also railways under construction June 30th, 1901 and the several mining districts of the territory.

Description: Map shows early twentieth century New Mexico Territory postal routes [color coded to indicate frequency of delivery], post office locations, distances between post offices, county seats, existing railroads, mining districts, electric and cable cars, counties, and villages. Includes "Explanation of mail service," "List of counties in New Mexico Territory," and key to 116 "Mining Districts." Scale [ca. 1:1,140,000].
Date: 1901
Creator: Norris Peters Co.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

[Photograph of White's Mines and Dirt Road]

Description: Photograph of a tall, multistory and multi-wing building with small windows, visible over a line of bushes. Smoke rises from the building's stacks. A small, one-story wood building sits a short distance from the building on the right. A thin layer of snow covers the ground beneath the bushes, which sit behind a barbed wire fence bordering a dirt road.
Date: [1900..1929]
Item Type: Refine your search to only Photograph
Partner: Howard Payne University Library

Nell's topographical map of the state of Colorado.

Description: Map shows early twentieth century Colorado township grid, counties, roads, railroads, reservoirs, forest reserves, Native American reservations, U.S. Land offices, canals, and notable physical features. Relief shown by hachures, contours, and spot heights. Scale [ca. 1:633,600].
Date: 1907
Creator: Nell, Louis
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Map of the copper range in T. 51 R. 37 and adjacent parts, Ontonagon County, Michigan showing the location of the mines and principal beds [Map Cover].

Description: This is the map cover for map showing roads and trails, railroads, marshes, mineral veins, and the towns of Rockland, Greenland, and Mass City in Ontonagon County, Michigan. Includes notes. Scale [ca. 1:32,000].
Date: 1907
Creator: Meuche, A. H.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Map of the Copper Range of Northern Michigan [Map Case Cover].

Description: Map case cover. Map in separate image shows township grid, towns, town and county boundaries, landowners, railroads, canals, Michigan coastline along Lakes Michigan and Superior, mining activity, and the limits of the Copper Range; mine shafts in cross section; location of Kearsarge Lode in longitudinal section. Includes color key to major commercial holdings and cover. Insets: Geological section of Copper Range at Calumet; Longitudinal section of mines on Kearsarge Lode. Scale not given.
Date: 1905
Creator: Edwards, R. M.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Map of Atlin mining district : compiled from the latest surveys.

Description: Map shows mines, mineral resources, "mineral claims," roads, trails, mountains, glaciers, divisions, and towns for British Columbia and Northwest Territory; "provisional international boundary" between British Columbia and the United States. Relief shown by hachures and spot heights. Scale [ca. 1:379,000].
Date: 1905
Creator: Brownlee & Lowry (Atlin, B.C.)
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Carta general del Estado de Coahuila de Zaragoza : formada por Disposición del Gobierno del mismo Estado.

Description: Map shows early twentieth century roads, railroads, towns, mineral resources, haciendas, and ranches in Coahuila de Zaragoza [Coahuila] in northern Mexico. Includes legend and illustrations. Insets: "Zaragoza," "Coahuila Coal Co., washer plant & coke ovens," and "Compañía Metalurgica de Torreón, S.A." Relief shown by hachures and spot heights. Scale [ca. 1:500,000].
Date: 1905
Creator: Abbott, T. S.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Well-Auger.

Description: Patent for a well-boring auger is designed to improve the drilling process by multi-functional features of the auger that can be placed inside of a well-casing to cut a hole or can be used itself to cut through the casing.
Date: November 3, 1903
Creator: Hutchins, Charles N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pneumatic Jet for Conveyers

Description: Patent for a pneumatic jet that uses steam jets to provide power for various tasks such as distributing seed cotton or elevating coal. Illustrations included.
Date: September 21, 1909
Creator: Rice, Earley W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electromagnetic Ore-Separator.

Description: Patent for an electromagnetic ore separator, which reduces the risk of any valuable particles falling with the waste mineral material below the magnetic surface.
Date: February 16, 1909
Creator: Charlton, Thomas
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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